Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ecfbd4e4a52be19…

MALICIOUS

PDF

47.3 KB Created: 2020-07-30 19:16:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9d51319d3c89092a042f0d121b45d13e SHA-1: a7cc561d79339957c80e387cacb532941c7391d7 SHA-256: 5ecfbd4e4a52be19be5d1bd24e50aee4da7b83cd2474f4b420041bfb4e1ef017
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to SEO-optimized redirectors, including a critical finding of a link to known malicious infrastructure at 'https://ttraff.cc/pify?keyword=bwv+1006+piano+pdf'. The document body, though heavily obfuscated, appears to reference 'Bwv 1006 piano pdf', suggesting a lure for users searching for such content. The presence of many external PDF links further indicates a link farm strategy, likely to distribute malware or conduct phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=bwv+1006+piano+pdf In PDF document text
    • http://files.weareallrare.com/uploads/1/3/1/4/131407179/nasukuw.pdfIn PDF document text
    • http://files.professorwillis.com/uploads/1/3/0/9/130969819/3536095.pdfIn PDF document text
    • http://files.mapledurwellvillagehall.com/uploads/1/3/2/6/132696483/4159741.pdfIn PDF document text
    • http://files.islandplaster.com/uploads/1/3/1/4/131406527/565007.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5704/5913/files/40394365717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0830/9923/files/96477338597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8303/8874/files/vupipiruvid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7745/9365/files/gapipu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1713/4499/files/jujidetutafodogasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4102/1334/files/11157946825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8403/6761/files/21700448490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7826/2689/files/gatemel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0718/0954/files/kizaxavebifuwutosaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0047/1456/files/57620171146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0910/6332/files/19064315436.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B17 4868 bytes
SHA-256: 0dd4f1f1adc27e55e4e7af570dbda38dc9e0d1c0f687c72c9fe9b53b1e5010db
font_01_sfnt_off00008bbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BBF 11168 bytes
SHA-256: 86ab795b1b3cde0fc089f3b38031f14e53488f304d7b14e625b2078b9fd435df

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